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BR0007940A - Process of preparation of dimethyl sulfite - Google Patents

Process of preparation of dimethyl sulfite

Info

Publication number
BR0007940A
BR0007940A BR0007940-5A BR0007940A BR0007940A BR 0007940 A BR0007940 A BR 0007940A BR 0007940 A BR0007940 A BR 0007940A BR 0007940 A BR0007940 A BR 0007940A
Authority
BR
Brazil
Prior art keywords
preparation
dimethyl sulfite
sulfite
dimethyl
dimethil
Prior art date
Application number
BR0007940-5A
Other languages
Portuguese (pt)
Inventor
Klaus Halbritter
Hans Josef Sterzel
Christian Tragut
Eva Freudenthaler
Original Assignee
Basf Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Basf Ag filed Critical Basf Ag
Publication of BR0007940A publication Critical patent/BR0007940A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C301/00—Esters of sulfurous acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

"PROCESSO DE PREPARAçãO DE SULFITO DE DIMETILA". O sulfito de dimetila é preparado por transesterificação de um sulfito de alquileno cíclico de pelo menos 2 átomos de carbono com metanol, na presença ou na ausência de um catalisador, por um processo que é realizado continuamente em uma coluna."DIMETHIL SULPHITE PREPARATION PROCESS". Dimethyl sulfite is prepared by transesterification of a cyclic alkylene sulfite of at least 2 carbon atoms with methanol, in the presence or absence of a catalyst, by a process that is carried out continuously on a column.

BR0007940-5A 1999-02-03 2000-02-01 Process of preparation of dimethyl sulfite BR0007940A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904261A DE19904261A1 (en) 1999-02-03 1999-02-03 Process for the preparation of dimethyl sulfite
PCT/EP2000/000771 WO2000046218A2 (en) 1999-02-03 2000-02-01 Method of producing dimethyl sulfite

Publications (1)

Publication Number Publication Date
BR0007940A true BR0007940A (en) 2001-11-06

Family

ID=7896246

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0007940-5A BR0007940A (en) 1999-02-03 2000-02-01 Process of preparation of dimethyl sulfite

Country Status (12)

Country Link
US (1) US6423861B1 (en)
EP (1) EP1149088B1 (en)
JP (1) JP2002539084A (en)
CN (1) CN1146555C (en)
AT (1) ATE238293T1 (en)
AU (1) AU775028B2 (en)
BR (1) BR0007940A (en)
CA (1) CA2361404A1 (en)
DE (2) DE19904261A1 (en)
ES (1) ES2197864T3 (en)
PL (1) PL350561A1 (en)
WO (1) WO2000046218A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU747419B2 (en) 1997-11-05 2002-05-16 Neurosearch A/S Azaring-ether derivatives and their use as nicotinic ACH receptor modulators
US6876997B1 (en) 2000-05-22 2005-04-05 Overture Services, Inc. Method and apparatus for indentifying related searches in a database search system
CN100567259C (en) * 2005-01-12 2009-12-09 中国科学院福建物质结构研究所 A kind of method for preparing ethylene sulfite
CN115028555B (en) * 2022-07-04 2023-09-29 武汉青江化工黄冈有限公司 Continuous synthesis process of diethyl sulfate

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1107110A (en) * 1966-03-07 1968-03-20 Uniroyal Inc Sulfite diesters
GB8300102D0 (en) * 1983-01-05 1983-02-09 T & R Chemicals Inc Antithrombotic/antihypertensive treatment

Also Published As

Publication number Publication date
EP1149088B1 (en) 2003-04-23
CN1146555C (en) 2004-04-21
PL350561A1 (en) 2002-12-16
ATE238293T1 (en) 2003-05-15
CN1339033A (en) 2002-03-06
AU775028B2 (en) 2004-07-15
WO2000046218A3 (en) 2000-12-07
DE19904261A1 (en) 2000-08-10
US6423861B1 (en) 2002-07-23
EP1149088A2 (en) 2001-10-31
WO2000046218A2 (en) 2000-08-10
CA2361404A1 (en) 2000-08-10
JP2002539084A (en) 2002-11-19
AU3278000A (en) 2000-08-25
ES2197864T3 (en) 2004-01-16
DE50001861D1 (en) 2003-05-28

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]